ASoC: SOF: change type char to uint8_t in topology.h

Use uint8_t to replace char in packed ABI structs
to have fixed length for struct.
Signed-off-by: Pan Xiuli <xiuli.pan@linux.intel.com>
Signed-off-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Reviewed-by: Kai Vehmanen <kai.vehmanen@linux.intel.com>
Link: https://lore.kernel.org/r/20200415202816.934-14-pierre-louis.bossart@linux.intel.comSigned-off-by: Mark Brown <broonie@kernel.org>

include/sound/sof/topology.h

@@ -220,7 +220,7 @@ struct sof_ipc_comp_process {
 	/* reserved for future use */
 	uint32_t reserved[7];
 
-	unsigned char data[0];
+	uint8_t data[0];
 } __packed;
 
 /* frees components, buffers and pipelines